Question 1

How does the equilibrium rule,ΣF = 0,relate to Newton's first law of motion?

Accepted Answer

The equilibrium rule states Newton's fir

Question 2

A heavy block at rest is suspended by a vertical rope.When the block is accelerated upward by the rope,the rope tension

Accepted Answer

A) is less than its weight. 
B) equals its weight. 
C) is greater than its weight. 
A) is less than its weight. 
B) equals its weight. 
C) is greater than its weight.

Question 3

A particle is being accelerated through space by a 10-N force.Suddenly the particle encounters a second force of 10 N in the opposite direction.The particle with both forces acting

Accepted Answer

A) is brought to a rapid halt. 
B) decelerates gradually to a halt. 
C) continues at the same speed it had before encountering the second force. 
D) theoretically tends to accelerate toward the speed of light. 
E) none of the above 
A) is brought to a rapid halt. 
B) decelerates gradually to a halt. 
C) continues at the same speed it had before encountering the second force. 
D) theoretically tends to accelerate toward the speed of light. 
E) none of the above

Question 4

When dishes remain on a table when you yank the tablecloth beneath them,you're demonstrating

Accepted Answer

A) friction. 
B) inertia. 
C) constant motion. 
D) ΣF = 0. 
A) friction. 
B) inertia. 
C) constant motion. 
D) ΣF = 0.

Question 5

A stone is thrown vertically upward.At the top of its vertical path its acceleration is

Accepted Answer

A) zero. 
B) 10 m/s2. 
C) somewhat less than 10 m/s2. 
D) undetermined. 
A) zero. 
B) 10 m/s2. 
C) somewhat less than 10 m/s2. 
D) undetermined.

Question 6

You cannot exert a force on a wall

Accepted Answer

A) if the wall resists. 
B) unless you put your mind to it. 
C) unless the wall simultaneously exerts the same amount of force on you. 
A) if the wall resists. 
B) unless you put your mind to it. 
C) unless the wall simultaneously exerts the same amount of force on you.

Question 7

A 10-kg block is pushed across a friction-free horizontal surface with a horizontal force of 20 N.The acceleration of the block is

Accepted Answer

A) 1 m/s2. 
B) 2 m/s2. 
C) 5 m/s2. 
D) 10 m/s2. 
E) none of the above 
A) 1 m/s2. 
B) 2 m/s2. 
C) 5 m/s2. 
D) 10 m/s2. 
E) none of the above

Question 8

If you drop a pencil while riding on a smooth riding bus,why does the pencil land at the same place it would if the bus were at rest?

Accepted Answer

In accord with Newton's first law,since

Question 9

A ball rests in the middle of a cart.When you quickly jerk the cart forward,the ball

Accepted Answer

A) hits the front of the cart. 
B) hits the back of the cart. 
C) remains in the middle of the cart. 
D) all,depending on how quickly the cart is pulled 
A) hits the front of the cart. 
B) hits the back of the cart. 
C) remains in the middle of the cart. 
D) all,depending on how quickly the cart is pulled

Question 10

An huge bear and a leaf fall from a tree through the air to the ground below.The force of air resistance is greater on the

Accepted Answer

A) bear. 
B) leaf. 
C) same on each 
A) bear. 
B) leaf. 
C) same on each

Question 11

A big and a small person wish to parachute at equal terminal velocities.The big person should

Accepted Answer

A) jump first. 
B) jump lightly. 
C) pull upward on the supporting strands to decrease the downward net force. 
D) get a larger parachute. 
E) none of the above 
A) jump first. 
B) jump lightly. 
C) pull upward on the supporting strands to decrease the downward net force. 
D) get a larger parachute. 
E) none of the above

Question 12

Joshua is attracted toward Earth by a 500-N gravitational force.The Earth is attracted toward Joshua with a force of

Accepted Answer

A) zero. 
B) 250 N. 
C) 500 N. 
D) 1000 N. 
E) none of the above 
A) zero. 
B) 250 N. 
C) 500 N. 
D) 1000 N. 
E) none of the above

Question 13

A ball is thrown vertically upward.At the top of its vertical path,its velocity is

Accepted Answer

A) 0 m/s. 
B) 10 m/s. 
C) between 0 m/s and 10 m/s. 
D) greater than 10 m/s. 
E) none of the above 
A) 0 m/s. 
B) 10 m/s. 
C) between 0 m/s and 10 m/s. 
D) greater than 10 m/s. 
E) none of the above

Question 14

The attraction of Earth on a skydiver pulls the diver downward.The reaction to this force is

Accepted Answer

A) air resistance the skydiver encounters while falling. 
B) Earth pulling upward on the skydiver. 
C) the attraction to the planets,stars,and every particle in the universe. 
D) all of the above 
E) none of the above 
A) air resistance the skydiver encounters while falling. 
B) Earth pulling upward on the skydiver. 
C) the attraction to the planets,stars,and every particle in the universe. 
D) all of the above 
E) none of the above

Question 15

When a falling object has reached its terminal velocity,its acceleration is

Accepted Answer

A) constant. 
B) zero. 
C) g. 
A) constant. 
B) zero. 
C) g.

Question 16

Earth exerts a force on the Moon.These two bodies make up

Accepted Answer

A) one interaction. 
B) two interactions. 
C) multiple interactions. 
A) one interaction. 
B) two interactions. 
C) multiple interactions.

Question 17

If you carry a heavy bag of groceries and bang your hand against the wall,the concept that best explains why your hand hurts is

Accepted Answer

A) inertia. 
B) gravity. 
C) resistance. 
D) none of the above 
A) inertia. 
B) gravity. 
C) resistance. 
D) none of the above

Question 18

A given net force propels an object along a straight-line path.If the net force were doubled,its acceleration would

Accepted Answer

A) quadruple. 
B) double. 
C) stay the same. 
D) be half. 
E) none of the above 
A) quadruple. 
B) double. 
C) stay the same. 
D) be half. 
E) none of the above

Question 19

For a falling ball the action force is the pull of Earth on the ball.The reaction force is the

Accepted Answer

A) air resistance acting against the ball. 
B) acceleration of the ball. 
C) pull of the ball on Earth. 
D) nonexistent. 
E) none of the above 
A) air resistance acting against the ball. 
B) acceleration of the ball. 
C) pull of the ball on Earth. 
D) nonexistent. 
E) none of the above

Question 20

When an apple that weighs 1 N is held at rest above your head,the net force on the apple is

Accepted Answer

A) 0 N. 
B) 0.1 N. 
C) 1 N. 
D) 10 N. 
E) none of the above 
A) 0 N. 
B) 0.1 N. 
C) 1 N. 
D) 10 N. 
E) none of the above

Exam 2: Newtons Laws of Motion

How does the equilibrium rule,ΣF = 0,relate to Newton's first law of motion?

A heavy block at rest is suspended by a vertical rope.When the block is accelerated upward by the rope,the rope tension

A particle is being accelerated through space by a 10-N force.Suddenly the particle encounters a second force of 10 N in the opposite direction.The particle with both forces acting

When dishes remain on a table when you yank the tablecloth beneath them,you're demonstrating

A stone is thrown vertically upward.At the top of its vertical path its acceleration is

You cannot exert a force on a wall

A 10-kg block is pushed across a friction-free horizontal surface with a horizontal force of 20 N.The acceleration of the block is

If you drop a pencil while riding on a smooth riding bus,why does the pencil land at the same place it would if the bus were at rest?

A ball rests in the middle of a cart.When you quickly jerk the cart forward,the ball

An huge bear and a leaf fall from a tree through the air to the ground below.The force of air resistance is greater on the

A big and a small person wish to parachute at equal terminal velocities.The big person should

Joshua is attracted toward Earth by a 500-N gravitational force.The Earth is attracted toward Joshua with a force of

A ball is thrown vertically upward.At the top of its vertical path,its velocity is

The attraction of Earth on a skydiver pulls the diver downward.The reaction to this force is

When a falling object has reached its terminal velocity,its acceleration is

Earth exerts a force on the Moon.These two bodies make up

If you carry a heavy bag of groceries and bang your hand against the wall,the concept that best explains why your hand hurts is

A given net force propels an object along a straight-line path.If the net force were doubled,its acceleration would

For a falling ball the action force is the pull of Earth on the ball.The reaction force is the

When an apple that weighs 1 N is held at rest above your head,the net force on the apple is

Patterns of Motion and Equilibrium

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light

Atoms and the Periodic Table

The Atomic Nucleus and Radioactivity

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Plate Tectonics and Earths Interior

Shaping Earths Surface

Geologic Time - Reading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: The Nature of Science

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